33340289 has 2 divisors, whose sum is σ = 33340290. Its totient is φ = 33340288.

The previous prime is 33340277. The next prime is 33340301. The reversal of 33340289 is 98204333.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (33340277) and next prime (33340301).

It can be written as a sum of positive squares in only one way, i.e., 31449664 + 1890625 = 5608^2 + 1375^2 .

It is an emirp because it is prime and its reverse (98204333) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 33340289 - 2⁴ = 33340273 is a prime.

It is a super-2 number, since 2×33340289² = 2223149741207042, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (33340259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16670144 + 16670145.

It is an arithmetic number, because the mean of its divisors is an integer number (16670145).

Almost surely, 2^33340289 is an apocalyptic number.

It is an amenable number.

33340289 is a deficient number, since it is larger than the sum of its proper divisors (1).

33340289 is an equidigital number, since it uses as much as digits as its factorization.

33340289 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 33340289 is about 5774.1050388783. The cubic root of 33340289 is about 321.8521787194.

The spelling of 33340289 in words is "thirty-three million, three hundred forty thousand, two hundred eighty-nine".